Convert WinHelp to HTML Help

See About this website for notes about tips and links provided.

In 1999 I did many conversion tests (using the Help authoring tools [HATs] that were available then) as part of a feasibility study into converting Winhelp (*.HLP) files into HTML Help (*.CHM) files for a client. The results of those 1999 tests and the accompanying documentation are available as a PDF file (256kb).


Any comments about the merits or otherwise of various conversion options with the tools mentioned are based on OLD versions of those tools, so should be ignored. I have NOT updated this information so details about specific tools WILL be out of date, links to software/websites etc. may no longer work, specific HATs may now automate some of these processes, and so on. This study was for a specific set of files, for a specific client—and the contents are more than 9 years old.